i ran vista on a p2 500mhz with 384mb ram, and some old radeon 7500, it ran, but it ran like s***, but i was happy it ran.....(this was a beta copy btw)
vista has many other things that run on the background + its fancy graphics and indexing service, if you turn off some of that stuff, vista should be able to run on slower older pc's.
also 1 of the things vista is takin ram on, is it checks for DRM every 10 secs or so.(DRM as in copyright stuff)
1993 nissan 240sx hatchback(stock) <<drifter, straight liner, road courser
"Horsepower is the force that determines how fast you hit the wall. Torque is the force that determines how far you take the wall with you after you hit it."
"Horsepower sells cars, torque wins races" - Carroll Shelby
"Real cars don't make power at the front wheels....they lift them."